Home / 203,674.14-305,507.85-83,706.78

Finding the Fourth Proportional to 203,674.14, 305,507.85 and 83,706.78

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Solution

The fourth proportional to 203,674.14, 305,507.85 and 83,706.78 is: 125,558.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,674.14 : 305,507.85 = 83,706.78 : x
  2. Step 2: Convert to fraction form
    203,674.14/305,507.85 = 83,706.78/x
  3. Step 3: Cross multiply
    203,674.14x = 305,507.85 × 83,706.78
  4. Step 4: Simplify right side
    203,674.14x = 25,573,078,388.22
  5. Step 5: Solve for x
    x = 25,573,078,388.22/203,674.14
  6. Step 6: Final answer
    x = 125,558.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.